A high jumper is made to land on a soft cushioned bed after his jump. What would have happened if he was made to land on a hard surface? Give a scientific explanation related to Newton’s second law of motion.
Answers
Answer:
When the high jumper falls on a soft landing site,then jumper takes a longer time to come to a stop. The rate of change of momentum of athlete is less due to which smaller stopping force acts on the athlete. Thus cushion or sand being soft,reduces the athlete's momentum more gently
Explanation:
I hope this will help you and if you are satisfied with the answer pls make me a brainlist
have a nice and a happy day
Explanation:
Acceleration refers to the change in velocity with respect to time.
According to the question, Initial velocity (u) is 3 km/hr, Final Velocity (v) is 6 km/hr and time taken for change is 5 seconds. Hence the acceleration of the object is:
\begin{gathered}\implies a = \dfrac{v-u}{t}\\\\\\\implies a = \dfrac{6 - 3}{5}\\\\\\\implies a = \dfrac{3}{5} = \boxed{\bf{0.6 \:\:m/s^2}}\end{gathered}
⟹a=
t
v−u
⟹a=
5
6−3
⟹a=
5
3
=
0.6m/s
2
Also, we are given that the force applied on the object is 5 dyne, where 1 dyne is equal to 10⁵ N. Hence the force of 5 dyne in terms of Newton is:
⇒ F = 5 × 10⁵ N
We know that, Force = Mass × Acceleration. Hence the value of mass in terms of Force and Acceleration is given as:
⇒ Mass = Force / Acceleration
⇒ Mass = ( 5 × 10⁵ ) / 0.6
⇒ Mass = 8.3 × 10⁵ kg
Hence the mass of the object is 8.3 × 10⁵ kg